【.net core】配置依赖注入session

1、安装Microsoft.AspNetCore.Session    NuGet包

2、修改Startup.cs 添加相关服务，services.AddSession()和app.UseSession()

        public void ConfigureServices(IServiceCollection services)
        {
            services.AddDbContext<ApplicationDbContext>(options =>
                options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection")));
 
            services.AddIdentity<ApplicationUser, IdentityRole>()
                .AddEntityFrameworkStores<ApplicationDbContext>()
                .AddDefaultTokenProviders();
 
            // Add application services.
            services.AddTransient<IEmailSender, EmailSender>();
 
            //注入Session
            services.AddSession();
 
            services.AddMvc();
        }

 public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
 
            if (env.IsDevelopment())
            {